the parts catalog calls it "Headlight vertical aim control sensor", so I'd think that's what they are used for. Also if they are used for any type of dynamic control, BMW would have placed one at each wheel, instead of one per axle.

the parts catalog calls it "Headlight vertical aim control sensor", so I'd think that's what they are used for. Also if they are used for any type of dynamic control, BMW would have placed one at each wheel, instead of one per axle.

Can you guys elaborate a little more as of the location of that sensor, I just did a spring install and my headlights are now between high beams and low beams. If you guys have a photo of it as of where it sits, it would be great.

Can you guys elaborate a little more as of the location of that sensor, I just did a spring install and my headlights are now between high beams and low beams. If you guys have a photo of it as of where it sits, it would be great.

The armature attaches to the lower control arm on the driver's side front. Take off your front driver's side wheel, and peek beyond the caliper, and it's there.

It is very easy to break that arm when doing spring/damper/coilover installs, if you forget to undo that 8mm nut. So, if you did the install yourself, and don't know where that sensor is, it's possible you damaged it.

If you want to re-aim your headlights, there is a large white plastic philips screw on the back of each headlight unit.

The armature attaches to the lower control arm on the driver's side front. Take off your front driver's side wheel, and peek beyond the caliper, and it's there.

It is very easy to break that arm when doing spring/damper/coilover installs, if you forget to undo that 8mm nut. So, if you did the install yourself, and don't know where that sensor is, it's possible you damaged it.

If you want to re-aim your headlights, there is a large white plastic philips screw on the back of each headlight unit.